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against a set of trusted certificates embedded in the UEFI BIOS. Secure Boot validates the software identity of the
following components in the boot process:
•
UEFI drivers loaded from PCIe cards
•
UEFI drivers loaded from mass storage devices
•
Preboot UEFI Shell applications
•
OS UEFI boot loaders
When Secure Boot is enabled:
•
Firmware components and operating systems with boot loaders must have an appropriate digital signature to execute
during the boot process.
•
Operating systems must support Secure Boot and have an EFI boot loader signed with one of the authorized keys to
boot. For more information about supported operating systems, see http://www.hpe.com/servers/ossupport.
You can customize the certificates embedded in the UEFI BIOS by adding or removing your own certificates, either from a
management console directly attached to the server, or by remotely connecting to the server using the iLO Remote
Console.
You can configure Secure Boot:
•
Using the System Utilities options described in the following sections.
•
Using the iLO RESTful API to clear and restore certificates. For more information, see the Hewlett Packard Enterprise
website (http://www.hpe.com/info/redfish).
•
Using the secboot command in the Embedded UEFI Shell to display Secure Boot databases, keys, and security
reports.
Launching the Embedded UEFI Shell
Use the Embedded UEFI Shell option to launch the Embedded UEFI Shell. The Embedded UEFI Shell is a preboot
command-line environment for scripting and running UEFI applications, including UEFI boot loaders. The Shell also
provides CLI-based commands you can use to obtain system information, and to configure and update the system BIOS.
Prerequisites
Embedded UEFI Shell is set to Enabled.
Procedure
1. From the System Utilities screen, select Embedded Applications > Embedded UEFI Shell.
The Embedded UEFI Shell screen appears.
2. Press any key to acknowledge that you are physically present.
This step ensures that certain features, such as disabling Secure Boot or managing the Secure Boot certificates using
third-party UEFI tools, are not restricted.
3. If an administrator password is set, enter it at the prompt and press Enter.
The Shell> prompt appears.
Software and configuration utilities
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